"In June 2011, the Iowa Department of Corrections released a study entitled ""Iowa Recidivism Report: Prison Return Rates."" The study documents that Iowa's three-year return rate to prison for offenders released during FY2007 decreased from 33.9 percent for the previous three-year period studied to 31.8 percent. More dramatic was the decrease in the percent of offenders with mental illness returning to prison. ""Chronic"" mental illness was defined as conditions that are managed rather than ""cured."""